public void TestAllOperators()
{
foreach (var op in new List<String>() { "<", "<=", "==", "!=", ">", ">=" })
{
var lex = new OperatorLexer(new StringReader(op));
var tok = (OperatorToken)lex.Scan();
Assert.AreEqual(tok.tag, Tag.OPERATOR);
Assert.AreEqual(tok._operator, op);
}
}
public void TestOperatorsAndInts()
{
var lex = new OperatorLexer(new StringReader("1<2=<="));
var tok = lex.Scan();
Assert.AreEqual(tok.tag, Tag.INTEGER);
tok = lex.Scan();
Assert.AreEqual(tok.tag, Tag.OPERATOR);
Assert.AreEqual(((OperatorToken)tok)._operator, "<");
tok = lex.Scan();
Assert.AreEqual(tok.tag, Tag.INTEGER);
tok = lex.Scan();
Assert.AreEqual(tok.tag, '=');
tok = lex.Scan();
Assert.AreEqual(tok.tag, Tag.OPERATOR);
Assert.AreEqual(((OperatorToken)tok)._operator, "<=");
}
